Magnum, P.I. (1980)

Magnum is hired by meek insurance salesman Dan Wolf to locate his father, who he has not seen for thirty years. But unawares to Thomas, the client is actually an impostor hit-man who is using Thomas to help locate his victim, wealthy businessman Theo Wolf, whom he plans to kill to make a name for himself. In the hit, Magnum too is shot, bringing him close to death. Despite his wounds, Thomas becomes hell-bent on going after the hit-man to claim revenge for the dead man's widowed wife and son – and for himself...